What difference are we making? How do we know? The Good Enough Guide helps busy field workers to address these questions. It offers a set of basic guidelines on how to be accountable to local people and measure programme impact in emergency situations and contains a variety of tools on needs assessment and profiling. Its 'good enough' approach emphasises simple and practical solutions and encourages the user to choose tools that are safe, quick, and easy to implement. This pocket guide presents some tried and tested methods for putting impact measurement and accountability into practice throughout the life of a project. It is aimed at humanitarian practitioners, project officers and managers with some experience in the field, and draws on the work of field staff, NGOs, and inter-agency initiatives, including Sphere, ALNAP, HAP International, and People In Aid. The Guide was developed by the Emergency Capacity Building Project (ECB). The ECB is a collaborative effort by CARE International, Catholic Relief Services, the International Rescue Committee, Mercy Corps, Oxfam GB, Save the Children, and World Vision International.